They all contributed to computer usage by developing operating systems and software that made personal computers possible.
Bill Gates made microsoft, Paul Allen founded microsoft, and Steve Wozniak and Jobs both cofounded Apple.
Shakespeare's intention was not to make Shylock a tragic figure; instead, Shylock was meant to function as a man who could be vividly realized as the epitome of selfishness; he must be defeated in this romantic comedy. In a sense, it is Shakespeare's own brilliance which led him to create Shylock as almost too human. Shylock is powerfully drawn, perhaps too powerfully for this comedy, but his superb dignity is admirable, despite the fact that we must finally condemn him.
Someone who guides tours, is in charge of the specific position at all times